metusalem on "[Plugin: WP Author Box Lite] "About" is not translated?"

Hi, when I use it on http://udfordringen.dk/2016/07/sommeren-store-hoest/ for example, it translate "About" in the tab, but not "About" in the headline in the same tab?

How do I translate this?

https://wordpress.org/plugins/wp-author-box-lite/